Electric switch



June 26, 1923. 1,459,956 B. MAZZA ELECTRIC SWITCH Filed April 25 1919 4 Sheets-Sheet l |NVENTOR June 26, 1923;

1,459,956 B. MAZZA ELECTRIC SWITCH Filed April 25, 1919 4 Sheets-Sheet 2 INVENTOR Ben ,Mazza,

ATTORNEY WITNESSES l June 1923. 1,459,956

B. MAz'zA ELECTRIC SWITCH Filed April 25, 1919 4 Sheets-Sheet 5 Fly 6 V INVENTOR WITNESSES B672 MfiZZfl v BY 71% 6m AHMM y B.MAZZA ELECTRIC SWITCH 4 Sheets-Sheet 4 June 26, 1923.

Filed April 25 1919 INVENTOR Ben Mazza,

WITNESSES Patented June 26, 1923.

UNITED STATES BEN MAZZA, OF GRAND JUNCTION, COLORADO.

ELECTRIC SWIT CH.

Application filed April 25, 1919.

To all. whom it may concern Be it known that 1, BEN MAZZA, a citizen of the United States, residing at Grand Junction, in the county of Mesa and State of Colorado, have invented new and useful improvements in Electric Switches, of which the following is a specification.

This invention relates to time operated switches for electric circuits and aims to provide means for operating a switch either to open or close a circuit at a predetermined time.

An object of the invention is to provide a switch operated by an auxiliary spring motor,for example the alarm motor of the clock mechanism, which motor will furnish power to operate a movable contact to alternately open and close an electric circuit, the said movable contact being connected to a rotatable element, in the path of which is disposed suitable stops operated by the time mechanism, which will be automatically moved to release the rotatable element to permit the opening and closing of the switch.

The invention further provides manually operated means located upon the face of the clock, whereby the time at which the switch is to operate may be regulated so that the mechanism may be set to open or close the circuit at a predetermined time.

The invention further consists of the following novel construction and arrangement of parts, to be hereinafter more fully described and illustrated in the accompanying drawings in which,

Figure l is a front elevation of the clock in which is included the automatically operated switch,

Figure 2 is a front elevation of the mechanism with the clock case removed,

Figure 8 is a rear elevation of the same,

Figure 1 is a side view of the mechanism,

Figure 5 is a detailed elevation of the upper portion of the mechanism illustrating "the lever for controlling one of the movable stops and its resilient operating element, the controlling gear being shown by dotted lines,

Figure 6 is a horizontal sectional View on the line 66 of Figure 5, the lever being shown in position to release the stop,

Figure 7 is a detail perspective view of the lever controlling element shown in Figures 5 and 6,

Figure 8 is a detail elevation of a portion Serial No. 292,588.

of the switch closing mechanism with the controlling gear in dotted lines,

Figure 9 is a horizontal sectional view on the line 9-9 of Figure 8,

Figure 10 is a detail vertical sectional view on the line 1010 of Figure 4, showing the position of the switch operating lever and the rotatable dog when the switch is open, and

Figure 11 is a similar view with the parts in a position they occupy when the switch is closed.

Figure 12 is a detail perspective view of one of the stops.

Referring to the drawings in detail, the numeral 10 designates a clock case in which the mechanism is housed, this case carries the usual dial 11, over which travels the minute and hour hands, driven by suitable clock mechanism.

This mechanism is mounted upon a suitable frame including a front plate 12 and a rear plate 13 in which the arbor 1 1 of the hands is mounted. Also mounted within this frame are the usual spring motors 15 and 16, the former operating the time mechanism, while the latter serves to operate the movable switch contact to be hereinafter de scribed.

The motor 16 operates a shaft 17 journaled in the frame, this shaft being rotated under the influence of the motor through the medium of a pinion 18 thereon, which is driven by a gear 19, included in the usual alarm mechanism of a clock. The motor 16 which is hereinafter referred to as the switch motor, being the ordinary alarm motor. The shaft 17 extends through the rear plate 13 and has secured thereon a crank arm 20, this arm being connected to the free end of a lever 21 through the me dium of a link 22. The lever 21 comprises the movable contact of the switch, this said lever being pivoted to the rear plate as shown at 23 and suitably insulated there from. Secured to the lever 21 is a pro jection 24:, which is adapted to engage a. contact 25 permanently secured upon the rear plate 13 and also insulated from the plate. Lead wires 26 may be secured to the switch contacts by any suitable means.

Rigidly mounted upon the shaft 1? is a radially extending finger 27, which is adapted to rotate with the shaft under the inthe path of this finger are stops 28 and 29,

upon the dial either A. M, or P. M. as the case may be. The pointer 41 is then set at a desired time either A. M. or P. H. and the switch will automatically open or close at such time.

it is believed that when the foregoing description is read in connection with the accompanying drawings, that the construction, operation and advantages of the in vention will be apparent and that a further detailed description is unnecessary. The right is reserved to make such changes as will fall within the scope of the appended claims.

Having described claimed is 1. In a time control switch, the combination with a clock mechanism including an auxiliary motor, of a switch including a stationary contact and a movable contact, means operated by the clock mechanism for alternately moving the movable contact in opposite directions, a rotatable element included in such clock' operated means, means located in the path of said rotatable element for stopping the movement of the movable contact when the switch reaches a closed position, means including a transversely theinvention, what is movable bar also located in the path of the rotatable element for stopping the move- .ment of said movable contact when the switch is opened and means whereby the switch operating mechanism may be controlled to release the rotatable element at predetermined times.

2. In a time control switch, the combination wit-h a clock mechanism including an auxiliary motor, of a switch including a stationary contact and a movable contact, means operated by the clock mechanism for alternately moving the movable contact in opposite directions, a rotatable element included in such clock operated means, means located in the path of said rotatable element for stopping the movement of the movable contact when the switch reaches a closed position, means including a cam operated transversely movable bar also located in the path of the rotatable element for stopping the movement of said movable contact when the switch is open and means whereby the switch operating mechanism may be controlled to release the rotatable element at predetermined times.

In testimony whereof I afiix my signature.

. BEN MAZZA. 

